78471727301751 has 32 divisors (see below), whose sum is σ = 119839704975360. Its totient is φ = 44742155218176.

The previous prime is 78471727301711. The next prime is 78471727301771. The reversal of 78471727301751 is 15710372717487.

It is not a de Polignac number, because 78471727301751 - 2¹⁰ = 78471727300727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78471727301711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25262050 + ... + 28197776.

It is an arithmetic number, because the mean of its divisors is an integer number (3744990780480).

Almost surely, 2^{78471727301751} is an apocalyptic number.

78471727301751 is a deficient number, since it is larger than the sum of its proper divisors (41367977673609).

78471727301751 is a wasteful number, since it uses less digits than its factorization.

78471727301751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938543.

The product of its (nonzero) digits is 16134720, while the sum is 60.

The spelling of 78471727301751 in words is "seventy-eight trillion, four hundred seventy-one billion, seven hundred twenty-seven million, three hundred one thousand, seven hundred fifty-one".